Nyssorhynchus
Mostrando 37-48 de 51 artigos, teses e dissertações.
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37. Incrimination of Anopheles (Nyssorhynchus) rangeli and An. (Nys.) oswaldoi as natural vectors of Plasmodium vivax in Southern Colombia
Malaria transmission in the Southern Colombian state of Putumayo continues despite the absence of traditional vector species, except for the presence of Anopheles darlingi near the southeastern border with the state of Amazonas. In order to facilitate malaria vector incrimination in Putumayo, 2445 morphologically identified Anopheles females were tested for
Memórias do Instituto Oswaldo Cruz. Publicado em: 2006-09
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38. The importance of Anopheles albitarsis E and An. darlingi in human malaria transmission in Boa Vista, state of Roraima, Brazil
In several districts of Boa Vista, state of Roraima, Brazil we found Anopheles (Nyssorhynchus) albitarsis E to be the primary vector of human malaria parasites, and during 2001-2002 it was significantly more abundant than An. darlingi (p < 0.001). Other species sampled were An. (Nys.) braziliensis, An. (Ano.) peryassui, An. (Nys.) nuneztovari, An. (Nys.) osw
Memórias do Instituto Oswaldo Cruz. Publicado em: 2006-03
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39. Variability and genetic differentiation among Anopheles (Ano.) intermedius Chagas, 1908 and Anopheles (Ano.) mattogrossensis Lutz & Neiva, 1911 (Diptera: Culicidae) from the Brazilian Amazon
Anopheles (Anopheles) intermedius and Anopheles (Ano.) mattogrossensis are Brazilian anopheline species belonging to the scarcely studied Anopheles subgenus. Few studies have been done on the genetic differentiation of these species. Both species have been found infected by Plasmodium and are sympatric with other anopheline species from the Nyssorhynchus sub
Memórias do Instituto Oswaldo Cruz. Publicado em: 2005-10
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40. Identification of Anopheles (Nyssorhynchus) albitarsis complex species (Diptera: Culicidae) using rDNA internal transcribed spacer 2-based polymerase chain reaction primes
Anopheles (Nyssorhynchus) marajoara is a proven primary vector of malaria parasites in Northeast Brazil, and An. deaneorum is a suspected vector in Western Brazil. Both are members of the morphologically similar Albitarsis Complex, which also includes An. albitarsis and an undescribed species, An. albitarsis "B". These four species were recognized and can be
Memórias do Instituto Oswaldo Cruz. Publicado em: 2005-08
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41. Molecular differentiation of Anopheles (Nyssorhynchus) benarrochi and An. (N.) oswaldoi from Southern Colombia
Anopheles (Nyssorhynchus) benarrochi, An. (N.) oswaldoi, and An. (N.) rangeli are the most common anthropophilic mosquitoes in the southern Colombian state of Putumayo. Adult females are most commonly collected in epidemiological studies, and this stage poses significant problems for correct identification, due to overlapping inter-specific morphological cha
Memórias do Instituto Oswaldo Cruz. Publicado em: 2005-04
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42. Cladistic analysis of the subgenus Anopheles (Anopheles) Meigen (Diptera: Culicidae) based on morphological characters
In the present study, we used morphological characters to estimate phylogenetic relationships among members of the subgenus Anopheles Meigen. Phylogenetic analyses were carried out for 36 species of Anopheles (Anopheles). An. (Stethomyia) kompi Edwards, An. (Lophopodomyia) gilesi (Peryassú), Bironella hollandi Taylor, An. (Nyssorhynchus) oswaldoi (Peryassú
Memórias do Instituto Oswaldo Cruz. Publicado em: 04/04/2004
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43. Isoenzymatic variability among five Anopheles species belonging to the Nyssorhynchus and Anopheles subgenera of the Amazon region, Brazil
An isoenzymatic comparative analysis of the variability and genetics differentiation among Anopheles species was done in populations of An. (Nys.) intermedius and An. (Ano.) mattogrossensis of the Anopheles subgenus, and of An. darlingi, An. albitarsis and An. triannulatus of the Nyssorhynchus subgenus, with the aim of detecting differences between both subg
Memórias do Instituto Oswaldo Cruz. Publicado em: 2003-03
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44. Atividade de Culicidae em remanescente florestal na região urbana de Curitiba (Paraná, Brasil)
Vegetation islands inside urban area can propitiate the formation of: a) adults refuge to many mosquitoes species, b) diversity of hosters, c) allows the proliferation of immature stages through naturals and artificial breeding, these ones were done by the interaction between antropic activity developed in these spaces or around areas. Considering the possib
Revista Brasileira de Zoologia. Publicado em: 2003-03
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45. Morphometric discrimination of females of five species of Anopheles of the subgenus Nyssorhynchus from Southern and Northwest Colombia
The most important vectors of human Plasmodium in the neotropics belong to the subgenus Nyssorhynchus. These species are generally sympatric in terms of their geographical distributions. Some are difficult to identify based solely on examination of adult females using the available morphological keys, in these cases examination of immature stages and male ge
Memórias do Instituto Oswaldo Cruz. Publicado em: 2002-12
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46. Systematic studies on Anopheles galvaoi Causey, Deane & Deane from the subgenus Nysssorhynchus blanchard (Diptera: Culicidae)
Anopheles galvaoi, a member of the subgenus Nyssorhynchus, is redescribed based on morphological characters of the adults male and female, fourth-instar larva and pupa. Female, male genitalia, larval and pupal stages are illustrated. Data about medical importance, bionomics, and distribution are given based on literature records. Adult female of An. galvaoi
Memórias do Instituto Oswaldo Cruz. Publicado em: 2002-12
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47. Anopheles halophylus, a new species of the subgenus Nyssorhynchus (Diptera: Culicidae) from Brazil
Anopheles halophylus n.sp. is described from Central Brazil. It is distinguished from An. triannulatus (Neiva and Pinto) by morphological and morphometric characters, especially in the male genitalia, larva and egg. Illustrations of the male and female genitalia, egg, larva and pupa, and discussion of the status of names associated with An. triannulatus are
Memórias do Instituto Oswaldo Cruz. Publicado em: 2002-09
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48. Encontro de anofelinos do subgênero Nyssorhynchus em recipientes artificiais, Maricá, RJ, Brasil
Registram-se o encontro de larvas e uma pupa de anofelinos em recipientes artificiais desativados. Foram encontradas larvas de Anopheles argyritarsis em uma caixa d'água abandonada, na localidade de Pedregulho, distrito de Ponta Negra, e uma pupa de Anopheles aquasalis em um recipiente experimental, a céu aberto, no distrito de Itaipuaçu, onde ocorreram t
Revista de Saúde Pública. Publicado em: 2001-08